North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical RE: IPv8 < IPv6
> Alan Hannan said: > > Physical topology is likely to map to geographic topology. > Circuits certainly do take odd L1 paths to connect L1 endpoints, > but these are exceptions, not he rule. > > Accordingly, not allocating in a geographic fashion lends to > deaggregation, which is bad. > > A good sentiment, but not neccessarily practical. The one constant we > can count on is that things change. > So, if I look at my crystal ball, and predict that I will need n addresses in a particular physical location, using your planning exemplar I will allocate n addresses in an aggregate. The fact that I only need 1/2 n now means that I will temporarily waste 1/2 n. But what happens when I need n + 1 addresses in that city? Which is the lesser of two evils? So there is also a good argument to *not* rely on a congruence of physical and geographic topology. Some form of NAT still appears preferable. > > Rodney Joffe Chief Technology Officer Genuity Inc., a Bechtel company http://www.genuity.net
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